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Synlett 1999; 1999(12): 1960-1962
DOI: 10.1055/s-1999-3000
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Deprotection of Acetals and Silyl Ethers Using a Polymer-Supported π-Acid Catalyst: Chemoselectivity and Polymer Effect

Nobuyuki Tanaka* , Yukio Masaki
  • *Gifu Pharmaceutical University, 5-6-1 Mitahora-higashi, Gifu 502-8585, Japan; Fax + 81-58-2 37-59 79; E-mail: masaki@gifu-pu.ac.jp
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Publication History

Publication Date:
31 December 1999 (online)

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A polymeric dicyanoketene acetal (DCKA), prepared from a styrene monomer bearing dicyanoketene acetal functionality, was found to be an effective and recyclable catalyst in the chemoselective deprotection of acetals and silyl ethers. A remarkable acceleration accountable for the polymer effect was observed.

polymeric π-acid catalyst - chemoselective deprotection - acetal - silyl ether - polymer effect